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Anti-corrosion high-tenacity wear-proof casting section

A high-toughness, anti-corrosion technology, applied in the direction of casting molds, casting mold components, casting molding equipment, etc., can solve the problems of wear resistance, hardness, toughness and poor corrosion resistance, low hardness, wear and other problems of casting segments

Inactive Publication Date: 2016-01-20
NINGGUO SOUTHERN WEAR RESISTANT MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The industrial casting section works in the environment of 200-300°C impact material wear for a long time, the impact frequency of the grinding body is high, and the wear is serious
The low-chromium, low-manganese, and medium-carbon casting grinding sections have high toughness and good thermal conductivity, but due to low hardness, poor wear performance and high consumption
If a high chromium casting section is used, although the hardness of the casting section can be improved, since the mill in the mineral processing industry is a water mill, in addition to chemical corrosion, during grinding, due to the high chromium content of the casting section, there will be a potential difference inside. Electricity is generated, electrochemical corrosion occurs under the condition of water medium conduction, and the use effect is not ideal. Therefore, the transformation of the casting section of the mine mill is a problem to be solved in this field.
[0003] Existing casting sections are poor in terms of wear resistance, hardness, toughness and corrosion resistance, and cannot meet the requirements of the current society

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An anti-corrosion, high-toughness and wear-resistant cast section proposed by the present invention is prepared according to the following steps:

[0025]S1. Melting: Add pig iron and steel scrap to the high-frequency induction melting furnace and heat to 1500°C. After holding for 45 minutes, add ferrochromium, red copper, silicon-calcium alloy, ferromanganese and ferromolybdenum. After complete melting, add ferroboron and ferromolybdenum. Ferrovanadium, heat up to 1560°C, keep warm for 20 minutes, add magnesium ingots, aluminum ingots, zirconium ingots and titanium ingots, remove slag after all raw materials are completely melted, and obtain matrix alloy liquid;

[0026] S2. Detection: Detect the component content of the matrix alloy liquid, and each element includes by weight percentage: C: 1.3%, Si: 1.3%, Cr: 0.1%, Ca: 1.2%, Mn: 2.0%, Mo: 0.8%, V: 0.02%, Zr: 0.04%, Al: 1.2%, B: 0.03%, Mg: 0.7%, Ti: 1.4%, Cu: 0.2%, S: 0.04%, P: 0.02%, and the balance is iron and unav...

Embodiment 2

[0034] An anti-corrosion, high-toughness and wear-resistant cast section proposed by the present invention is prepared according to the following steps:

[0035] S1. Melting: Add pig iron and steel scrap to the high-frequency induction melting furnace and heat to 1560°C. After holding for 20 minutes, add ferrochrome, red copper, silicon-calcium alloy, ferromanganese and ferromolybdenum. After complete melting, add ferroboron and ferromolybdenum. Ferrovanadium, heat up to 1600°C, keep warm for 10 minutes, add magnesium ingots, aluminum ingots, zirconium ingots and titanium ingots, remove slag after all raw materials are completely melted, and obtain matrix alloy liquid;

[0036] S2. Detection: Detect the component content of the matrix alloy liquid, and each element includes by weight percentage: C: 1.6%, Si: 0.9%, Cr: 0.5%, Ca: 0.5%, Mn: 3.5%, Mo: 0.6%, V: 0.04%, Zr: 0.02%, Al: 2.3%, B: 0.003%, Mg: 1.2%, Ti: 1.1%, Cu: 0.4%, S: 0.01%, P: 0.04%, the balance is iron and unavoida...

Embodiment 3

[0044] An anti-corrosion, high-toughness and wear-resistant cast section proposed by the present invention is prepared according to the following steps:

[0045] S1. Melting: Add pig iron and steel scrap to the high-frequency induction melting furnace and heat to 1530°C. After holding for 35 minutes, add ferrochromium, copper, silicon-calcium alloy, ferromanganese and ferromolybdenum. After complete melting, add ferroboron and ferromolybdenum. Ferrovanadium, heat up to 1580°C, keep warm for 15 minutes, add magnesium ingots, aluminum ingots, zirconium ingots and titanium ingots, remove slag after all raw materials are completely melted, and obtain matrix alloy liquid;

[0046] S2. Detection: Detect the composition content of the matrix alloy liquid, and each element includes by weight percentage: C: 1.4%, Si: 1.1%, Cr: 0.3%, Ca: 0.8%, Mn: 2.8%, Mo: 0.7%, V: 0.03%, Zr: 0.03%, Al: 1.7%, B: 0.02%, Mg: 0.9%, Ti: 1.2%, Cu: 0.3%, S: 0.02%, P: 0.03%, the balance is iron and unavoidab...

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Abstract

The invention discloses an anti-corrosion high-tenacity wear-proof casting section. The preparation steps of the anti-corrosion high-tenacity wear-proof casting section comprise smelting, detecting, pouring, thermal treating, preprocessing and coating spraying. A substrate molten alloy solution of the anti-corrosion high-tenacity wear-proof casting section comprises C, Si, Cr, Ca, Mn, Mo, V, Zr, Al, B, Mg, Ti, Cu, S, P, and the balance iron and unavoidable impurities. The anti-corrosion high-tenacity wear-proof casting section prepared in this way can be used in various environments, good corrosion resistance and good wear resistance are achieved, the hardness can reach over 70 HRC, the impact toughness can reach 7 J / cm2, and requirements for the casting section in the actual use process are met.

Description

technical field [0001] The invention relates to the technical field of casting segments, in particular to an anti-corrosion, high-toughness and wear-resistant casting segment. Background technique [0002] With the development of industry, the application of mills tends to be more extensive. The casting section is the grinding material medium of the mill equipment. The grinding effect is generated by the collision and friction between the casting sections of the mill, and between the casting section and the material, so that the material is The particle size is further reduced. Commonly used alloy cast segments in the prior art are widely used in building materials, mining, electric power and other industries due to their higher wear resistance than forged cast segments. The industrial casting section works in the environment of 200-300 ℃ impact material wear for a long time, the impact frequency of the grinding body is high, and the wear is serious. The low-chromium, low-...

Claims

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Application Information

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IPC IPC(8): C22C38/38C21D6/00C23C4/134C23C4/08B22C3/00B02C17/20
CPCY02P10/20
Inventor 熊夏鸣
Owner NINGGUO SOUTHERN WEAR RESISTANT MATERIALS
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